Temperature distribution measurement method and temperature distribution measurement device of cutting tools

摘要

PROBLEM TO BE SOLVED: To highly accurately measure temperature distribution of a cutting tool by converting image data photographed during substantial non-cutting into image temperature data. ;SOLUTION: The measuring target range of a cutting tool 24 abutted to a material to be cut 22 rotated in the direction of R is set within the photographing range of a photographing part A. A cutting period in which the material to be cut 22 is brought into contact with the tool 24 during cutting and a non-cutting period in which the tool 24 is separated from material 22 are provided. Therefor material to be cut 22 having a notch part 22s in the inside from a face to be cut 22a is used. The photographing part A is synchronized with a shutter signal Son an analysis part C supplies to two-dimensionally photograph a subject, this frame image information is seriously read as a pixel signal SBW and supplied to the analysis part C. The analysis part C converts input image data into image temperature data, the cooling characteristic of the tool 24 is calculated with the lapse of time during the non-cutting, and the temperature data are estimated and calculated at the time of changing-over of cutting and non-cutting on the basis thereof.;COPYRIGHT: (C)1997,JPO